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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Financing arrangements - Interest rate swaps) (Details) - USD ($) $ in Millions | 1 Months Ended |  |  |
--- | --- | --- | --- | ---
Nov. 30, 2014 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2017
Interest rate swap agreement |  |  |  |
Financing Arrangements |  |  |  |
Term of swap agreement | 5 years |  |  |
Notional amount |  | $ 50.0 |  |
Fixed interest rate payments (as a percent) |  | 1.85% |  |
Interest rate swap agreement | Other long-term assets |  |  |  |
Financing Arrangements |  |  |  |
Fair value of interest rate swap, asset |  | $ 0.2 | $ 0.3 |
Interest rate swap agreement | Credit Facility |  |  |  |
Financing Arrangements |  |  |  |
Amount of borrowings covered by the interest rate swap |  | $ 50.0 |  |
Effective fixed interest rate on hedged borrowings (as a percent) |  | 3.10% | 3.10% |
Forward-starting interest rate swap agreement |  |  |  |
Financing Arrangements |  |  |  |
Notional amount |  |  |  | $ 50.0
Fixed interest rate payments (as a percent) |  | 1.99% |  |
Forward-starting interest rate swap agreement | Other long-term assets |  |  |  |
Financing Arrangements |  |  |  |
Fair value of interest rate swap, asset |  | $ 0.1 | $ 0.5 |
Forward-starting interest rate swap agreement | Credit Facility |  |  |  |
Financing Arrangements |  |  |  |
Amount of borrowings covered by the interest rate swap |  | $ 50.0 |  |
Effective fixed interest rate on hedged borrowings (as a percent) |  | 3.24% |  |

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- Definition The fixed interest rate to which the hedged balance of the variable rate funds borrowed is effectively converted by the derivative. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value of all asset derivatives designated as cash flow hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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